CN114586778A - Dispersant composition and water dispersible granule prepared from same - Google Patents
Dispersant composition and water dispersible granule prepared from same Download PDFInfo
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- CN114586778A CN114586778A CN202210291086.2A CN202210291086A CN114586778A CN 114586778 A CN114586778 A CN 114586778A CN 202210291086 A CN202210291086 A CN 202210291086A CN 114586778 A CN114586778 A CN 114586778A
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- Prior art keywords
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- water dispersible
- polyoxyethylene ether
- dispersant composition
- alcohol polyoxyethylene
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/12—Powders or granules
- A01N25/14—Powders or granules wettable
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/34—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom
- A01N43/40—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with one nitrogen atom as the only ring hetero atom six-membered rings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/647—Triazoles; Hydrogenated triazoles
- A01N43/653—1,2,4-Triazoles; Hydrogenated 1,2,4-triazoles
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N43/00—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds
- A01N43/64—Biocides, pest repellants or attractants, or plant growth regulators containing heterocyclic compounds having rings with three nitrogen atoms as the only ring hetero atoms
- A01N43/707—1,2,3- or 1,2,4-triazines; Hydrogenated 1,2,3- or 1,2,4-triazines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
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- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- Agronomy & Crop Science (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Toxicology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention relates to a dispersant composition, and belongs to the technical field of pesticide preparations. The dispersant composition comprises the following components in parts by mass: 5-20 parts of isomeric alcohol polyoxyethylene ether, 1-20 parts of fatty alcohol polyoxyethylene ether, 10-30 parts of silicon dioxide and 30-85 parts of sodium lignosulfonate. Compared with the traditional dispersing agent for water dispersible granules, the dispersing agent composition has the functions of osmotic emulsification, can be added into most water dispersible granule products, can improve the disintegration property and the suspension property of the water dispersible granule when applied to the water dispersible granule, and has good stability.
Description
Technical Field
The invention relates to a dispersant composition and a water dispersible granule prepared from the same, and belongs to the technical field of pesticide preparations.
Background
The water dispersible granule is a novel pesticide preparation developed from wettable powder and a suspending agent in the early stage of the 20 th century in the 80 th year, and is a granular preparation which can be put into water and can be quickly disintegrated and dispersed to form a high-suspension solid-liquid dispersion system. Although the suspending agent is an environment-friendly preparation, the requirements on production conditions are high, high-content preparation cannot be realized, and the production, packaging and transportation costs are high, so that the use cost is increased; the wettable powder has the problem of dust pollution in the processing and using processes and seriously harms human health. The water dispersible granule can granulate the powdery preparation, can avoid dust pollution, is convenient to use and package, and can be quickly disintegrated and dispersed into a high-suspension dispersion system after being put into water in use. The water dispersible granule does not use any organic solvent, has the advantages of wettable powder and suspending agent, overcomes the defects of the wettable powder and the suspending agent, and is a great trend of the development of the current pesticide preparation.
The dispersing agent is an important component of the water dispersible granule. At present, the commonly used dispersing agents in the water dispersible granule are sodium alkyl benzene sulfonate, sodium lignin sulfonate, naphthalene sulfonate and the like. Although these dispersants have a certain effect of promoting disintegration and dispersion, they often have a problem of difficulty in disintegration when they are applied to low-melting-point raw drugs or high-content preparations, or have a low suspension rate after disintegration, which affects the dispersion of raw drugs.
Disclosure of Invention
The invention aims to solve the defects of the prior art, provides a dispersing agent composition, and uses the dispersing agent composition as a dispersing agent in water dispersible granules.
Technical scheme
A dispersant composition comprises the following components in parts by mass: 5-20 parts of isomeric alcohol polyoxyethylene ether, 1-20 parts of fatty alcohol polyoxyethylene ether, 10-30 parts of silicon dioxide and 30-85 parts of sodium lignosulfonate.
Further, the dispersant composition comprises the following components in parts by mass: 8-12 parts of isomeric alcohol polyoxyethylene ether, 6-10 parts of fatty alcohol polyoxyethylene ether, 16-22 parts of silicon dioxide and 50-65 parts of sodium lignosulfonate.
Further, the isomeric alcohol polyoxyethylene ether is isomeric tridecanol polyoxyethylene ether.
The preparation method of the dispersant composition comprises the following steps: adding isomeric alcohol polyoxyethylene ether and fatty alcohol polyoxyethylene ether into silicon dioxide, stirring uniformly, adding sodium lignosulfonate, mixing uniformly, and crushing to 50-100 meshes to obtain the dispersing agent composition.
The dispersant composition is applied to water dispersible granules.
The water dispersible granule prepared by the dispersant composition comprises the following raw materials by weight of 100 percent: 30-85% of original drug, 5-15% of dispersant composition, 3-5% of wetting agent, 3-30% of disintegrating agent and 0-30% of filler.
The technical material is one or a combination of more than two of tricyclazole, difenoconazole, nitenpyram or pymetrozine; the wetting agent is one or the combination of two of sodium dodecyl sulfate or sodium dodecyl benzene sulfonate in any proportion, the disintegrating agent is ammonium sulfate, and the filler is one or the combination of two of white carbon black or corn starch in any proportion.
The preparation method of the water dispersible granule comprises the following steps: uniformly mixing the dispersant composition with the original medicine, the wetting agent, the disintegrating agent and the filler according to a metering ratio, then extruding and granulating, and finally drying to obtain the water dispersible granule.
The invention has the beneficial effects that:
according to the invention, the isomeric alcohol polyoxyethylene ether, the fatty alcohol polyoxyethylene ether, the silicon dioxide and the sodium lignosulfonate are combined together in a specific ratio to prepare the dispersant composition, the dispersant composition has a penetration emulsification effect, can be added into most water dispersible granule products, can improve the disintegration property and the suspension property of the water dispersible granule when being applied to the water dispersible granule, and has good stability.
Detailed Description
The present invention will be further described with reference to the following specific examples.
In the following examples, the isomeric alcohol polyoxyethylene ether is isomeric tridecanol polyoxyethylene ether (5), and the fatty alcohol polyoxyethylene ether is carbon dodecanol polyoxyethylene ether (7), but the examples are not limited thereto.
Example 1
A dispersant composition comprises the following components in parts by mass: 12 parts of isomeric alcohol polyoxyethylene ether, 8 parts of fatty alcohol polyoxyethylene ether, 20 parts of silicon dioxide and 60 parts of sodium lignosulfonate.
Preparation method of the dispersant composition: adding the isomeric alcohol polyoxyethylene ether and the fatty alcohol polyoxyethylene ether into the silicon dioxide according to the mass parts, uniformly stirring, adding the sodium lignosulfonate, uniformly mixing, and crushing to 50-100 meshes by using a blade type crusher (rated power of 500W, load power of 4500W and motor rotation speed of 28000r/min) to obtain the dispersant composition.
Example 2
The dispersant composition comprises the following components in parts by mass: 6 parts of isomeric alcohol polyoxyethylene ether, 10 parts of fatty alcohol polyoxyethylene ether, 22 parts of silicon dioxide and 62 parts of sodium lignosulfonate.
Preparation method of the dispersant composition: adding the isomeric alcohol polyoxyethylene ether and the fatty alcohol polyoxyethylene ether into the silicon dioxide according to the mass parts, uniformly stirring, then adding the sodium lignosulfonate, and uniformly stirring and mixing to obtain the dispersant composition.
Comparative example 1
The dispersant composition comprises the following components in parts by mass: 19 parts of fatty alcohol-polyoxyethylene ether, 20 parts of silicon dioxide and 61 parts of sodium lignosulfonate.
Preparation method of the dispersant composition: adding the fatty alcohol-polyoxyethylene ether into the silicon dioxide according to the mass parts, uniformly stirring, adding the sodium lignosulfonate, uniformly mixing, and crushing to 50-100 meshes by using a blade type crusher (with the rated power of 500W, the load power of 4500W and the motor rotation speed of 28000r/min) to obtain the dispersant composition.
Comparative example 2
Sodium lignosulfonate is used as a dispersant.
Application test:
1. the dispersants of examples 1-2 and comparative examples 1-2 were used to prepare water dispersible granules, respectively, and then the water dispersible granules were tested for disintegration and suspension rate.
The formula of the water dispersible granule comprises the following components: the water dispersible granule comprises the following raw materials by weight of 100 percent: 38.6% of difenoconazole technical material, 12% of the dispersant composition of example 1, example 2, comparative example 1 or comparative example 2, 3% of wetting agent lauryl sodium sulfate, 25% of disintegrating agent (sodium sulfate 5% + ammonium sulfate 20%) and 21.4% of filler (corn starch 18.4% + white carbon black 3%).
The preparation method of the water dispersible granule comprises the following steps: uniformly mixing the dispersant composition with the original medicine, the wetting agent, the disintegrating agent and the filler according to a metering ratio, then extruding and granulating, and finally drying to obtain the water dispersible granule.
Test method for disintegratability: adding 0.50g of water dispersible granules into a 100mL stoppered measuring cylinder containing 90mL of standard hard water at 25 ℃, clamping the middle part of the measuring cylinder, stopping a bottle mouth, taking the middle part of the measuring cylinder as a center, rotating upside down, recording 1 time of up and down back and forth for each time of 2s, and recording the number of times of reversely placing the measuring cylinder when the particles are completely disintegrated; the suspension rate of the water dispersible granules is tested according to the method in GB/T14825-2006.
The test results are shown in table 1:
TABLE 1
| Disintegration (number of times of bumping into graduated cylinder) | Suspension rate | |
| Example 1 | 15 | 92.5％ |
| Example 2 | 20 | 91.3％ |
| Comparative example 1 | 38 | 83.2％ |
| Comparative example 2 | Can not disintegrate | Since it failed to disintegrate, it could not be measured |
As can be seen from the test results of Table 1, the water dispersible granules prepared using the dispersant compositions of examples 1-2 of the present invention have better disintegration and suspension properties.
2. The dispersants of examples 1-2 and comparative examples 1-2 were used to prepare water dispersible granules, respectively, and then the water dispersible granules were tested for disintegration and suspension rate.
The formula of the water dispersible granule comprises the following components: the water dispersible granule comprises the following raw materials by weight of 100 percent: 20.8 percent of nitenpyram with the content of 96.3 percent, 61.3 percent of pymetrozine with the content of 98 percent, 6 percent of dispersant composition of example 1, example 2, comparative example 1 or comparative example 2, 3 percent of wetting agent sodium dodecyl sulfate, 5.9 percent of disintegrant ammonium sulfate and 3 percent of filler white carbon black. The preparation method of the water dispersible granule comprises the following steps: uniformly mixing the dispersant composition with the original medicine, the wetting agent, the disintegrating agent and the filler according to a metering ratio, then extruding and granulating, and finally drying to obtain the water dispersible granule.
The test method of the disintegration and the suspension rate of the water dispersible granule is the same as the application test 1, and the test results are shown in a table 2:
TABLE 2
| Disintegration (number of times of bumping into graduated cylinder) | Suspension rate | |
| Example 1 | 150 | 93.7％ |
| Example 2 | 196 | 91.4％ |
| Comparative example 1 | 377 | 77.4％ |
| Comparative example 2 | Can not disintegrate | Since it failed to disintegrate, it could not be measured |
As can be seen from the test results of Table 2, the water dispersible granules prepared using the dispersant compositions of examples 1-2 of the present invention have better disintegratability and suspension properties.
Claims (7)
1. The dispersing agent composition is characterized by comprising the following components in parts by mass: 5-20 parts of isomeric alcohol polyoxyethylene ether, 1-20 parts of fatty alcohol polyoxyethylene ether, 10-30 parts of silicon dioxide and 30-85 parts of sodium lignosulfonate.
2. The dispersant composition of claim 1, wherein the dispersant composition consists of, in parts by mass: 8-12 parts of isomeric alcohol polyoxyethylene ether, 6-10 parts of fatty alcohol polyoxyethylene ether, 16-22 parts of silicon dioxide and 50-65 parts of sodium lignosulfonate.
3. The dispersant composition of claim 1 or claim 2, wherein said isomeric alcohol polyoxyethylene ether is isomeric tridecanol polyoxyethylene ether.
4. A process for the preparation of a dispersant composition as claimed in claim 1, 2 or 3, characterized in that the dispersant composition is obtained by adding isomeric alcohol polyoxyethylene ether and fatty alcohol polyoxyethylene ether to silica, stirring the mixture to homogeneity, adding sodium lignosulfonate, mixing the mixture to homogeneity and crushing the mixture to 50-100 mesh.
5. Use of the dispersant composition of claim 1 or 2 or 3 in water dispersible granules.
6. A water dispersible granule prepared by using the dispersant composition of claim 1, 2 or 3, wherein the water dispersible granule comprises the following raw materials by weight of 100 percent: 30-85% of original drug, 5-15% of dispersant composition, 3-5% of wetting agent, 3-30% of disintegrating agent and 0-30% of filler.
7. The water dispersible granule according to claim 6, wherein the technical material is one or a combination of more than two of tricyclazole, difenoconazole, nitenpyram or pymetrozine; the wetting agent is one or the combination of two of sodium dodecyl sulfate or sodium dodecyl benzene sulfonate in any proportion, the disintegrating agent is ammonium sulfate, and the filler is one or the combination of two of white carbon black or corn starch in any proportion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210291086.2A CN114586778A (en) | 2022-03-23 | 2022-03-23 | Dispersant composition and water dispersible granule prepared from same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210291086.2A CN114586778A (en) | 2022-03-23 | 2022-03-23 | Dispersant composition and water dispersible granule prepared from same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114586778A true CN114586778A (en) | 2022-06-07 |
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ID=81820250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210291086.2A Withdrawn CN114586778A (en) | 2022-03-23 | 2022-03-23 | Dispersant composition and water dispersible granule prepared from same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114586778A (en) |
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2022
- 2022-03-23 CN CN202210291086.2A patent/CN114586778A/en not_active Withdrawn
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Application publication date: 20220607 |